# Help with transformations of graphs in the format y=f(x)

What do I do to a graph if I have these transformations;

Y=f(x+3) and
Y=f(-x)

If anyone could help, it would be much appreciated :)

Posted Sat 5th January, 2013 @ 17:22 by Gaby Coghlan

y=f(x+3)  minus the x coordinate by 3.

E.g. f(x+3) for (2,0) would be (-1,0)

This sort of transformation doesn't affect the Y coordinate.

Y=f(-x)

All the x coordinates are reflected in the y axis.

this means that all x coordinates are effectively multiplied by -1.

e.g. (-2,0) would change to (2,0)  and (2,0) would change to (-2,0)

Answered Sat 5th January, 2013 @ 17:25 by .

Thanks so much!!! :)

Answered Sun 6th January, 2013 @ 00:08 by Gaby Coghlan

no problem

Answered Sun 6th January, 2013 @ 02:01 by .

Great way for rembering these is alcohol. if alochol is in your system still your hungover and lying dieing in bed, so you always travel horizontaly. if its not your awake and upright vertical.

Answered Sun 6th January, 2013 @ 15:04 by Edward Pinches